Well we certainly can't have THAT, can we ? !
Des Moines Register
http://www.desmoinesregister.com/story/news/2016/11/02/2-police-officers-killed-ambush-attacks/93155012/
UPDATE: Suspect ID’d in ‘ambush’ attacks that killed 2 officers
“They could not say how many shots were fired or how many people may have been shooting.”